CVE-2026-47140 CRITICAL

CVE-2026-47140: vm2: NodeVM builtin denylist bypass via process and inspector/promises allows host code execution

Vendor Patriksimek
Product vm2
Weakness CWE-693
Published June 12, 2026
Last update June 13, 2026
View on NVD All CVEs

CVSS base score

10.0/10
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Confidentiality High
Integrity High

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

What the vulnerability does

01Description

vm2 is an open source vm/sandbox for Node.js. Prior to version 3.11.4, NodeVM blocks several dangerous Node.js builtins such as module, worker_threads, cluster, vm, repl, and inspector. However, the denylist misses process and inspector/promises. Both can be used from sandboxed code to reach host-side execution primitives. This allows sandboxed code to bypass the intended builtin restrictions and execute code in the host process. This issue has been patched in version 3.11.4.

Key dates

02Disclosure timeline

June 12, 2026 CVE published
June 13, 2026 Record updated